µVision User's Guide

legacy

Create New Source Files

You may create a new source file with the menu option File — New. This opens an empty editor window where you can enter your source code. µVision3 enables the C color syntax highlighting when you save your file with the dialog File — Save As... under a filename with the extension *.C. We are saving our example file under the name MAIN.C.

#include <LPC210x.H>                       /* LPC210x definitions */

void wait (void)  {                        /* wait function */
  ;                                        /* only to delay for LED flashes */
}

int main (void)  {
  unsigned int i;                          /* Delay var */
  unsigned int j;                          /* LED var */

  IODIR = 0xFF;                            /* P0.0..7 defined as Outputs */
  while (1) {                              /* Loop forever */
    for (j = 0x01; j < 0x80; j <<= 1) {    /* Blink LED 0, 1, 2, 3, 4, 5, 6 */
      IOSET = j;                           /* Turn on LED */
      for (i = 0; i < 10000; i++)  {       /* Delay for 10000 Counts */
        wait ();                           /* call wait function */
      }
      IOCLR = j;                           /* Turn off LED */
        }
    for (j = 0x80; j > 0x01; j >>=1) {     /* Blink LED 7, 6, 5, 4, 3, 2, 1 */
      IOSET = j;                           /* Turn on LED */
      for (i = 0; i < 10000; i++)  {       /* Delay for 10000 Counts */
        wait ();                           /* call wait function */
      }
      IOCLR = j;                           /* Turn off LED */
    }
  }
}